Scream Disease Into the Wind

What can the Intensify Aspect spend its Element markers on, aside from its Powers?
Any other Spirit action that Shifting Memory of Ages is doing. However, almost all of the Spirit actions that the Intensify Aspect can usefully boost are either the use of one of their powers or a triggered action created by their powers (e.g., increasing the Damage from Vengeance of the Dead).
They generally can't spend Element Markers to boost the Powers of other Spirits, even if those Powers involving Shifting Memory of Ages making choices, since using a Power is the action of the Spirit targeting the Power, not the Spirit being targeted.
To cover some of the more unusual cases:
- Intensify can spend Element markers on actions granted to it by other Spirits to use at a later point in the turn, like adding a Disease with Scream Disease Into the Wind or doing Damage with Gift of the Sparking Sky.
- Intensify can spend a Fire marker on a Ritual of Destroying Flame.
- Intensify can't spend Element markers on benefits that aren't actions, like the ongoing defense from Bargains of Power and Protection.
Tags: Action Modifiers, Element markers, Triggered Actions, Scream Disease Into the Wind, 4 more...

How does "resolve powers in the order they're written" work for things like "If you have (elements), +1 Range"?
Internal modifiers like this – a Power changing its own Speed, Range, or other targeting – are looked at when they're relevant (like during targeting), not during normal Power resolution. This is an exception to "do things strictly in order once using the Power".
This is also the case for Powers like The Jungle Hungers, where a threshold modifies the instructions earlier in the Power. Technically, every use of "Instead..." in an innate power works this way; it's pretty simple for human minds to understand the intent, but the formal specification is messier.
Also related: A Power that is 100% internal modifiers doesn't do anything, so can't be targeted/used for things like Scream Disease Into the Wind..
Tags: Resolving Powers, Range Boosts, Speed (Fast/Slow), Targeting, 6 more...
If you skip using the text effects of a Power *(p. 17 core rules)*, are you still considered to have targeted / used that Power? (For, eg, Shroud of Silent Mist.)
No, if you target a Power you must actually attempt to perform its text effects. (It need not actually have any game effect.)
The core rules would be better phrased as "you may forego using a Power".
Tags: Targeting, Shroud of Silent Mist, Scream Disease Into the Wind, Blitz, 1 more...

What happens if you give a Range boost to someone who's used Bargains of Power and Protection? Does it matter if they played Bargains on that turn or an earlier turn?
In either case, for the turn the Range boost is active, it increases the "within Range 1 of your Presence" at which that Spirit affects Dahan. The boost wears off at the end of the turn, even though Bargains of Power and Protection doesn't.
This includes range bonuses to "your Power Card" (eg, Volcano Looming High).
Tags: Range, Range Boosts, Bargains of Power and Protection, Reaching Grasp, 5 more...
When exactly do you have to pay a "cost to use" on a Power Card?
Before targeting it - "using" / "resolving" a Power includes choosing a target land and verifying that it's legal.
This can be relevant for cards like Scream Disease Into the Wind, which set up a triggered action after a Power is used on a land.
Tags: Cost To Use, Triggered Actions, Scream Disease Into the Wind, Mists Shift and Flow (Shroud of Silent Mist), 4 more...

Can you target a power on a land where you know it won't do anything? For instance, target a land without Explorers with a "Push 1 Explorer" Power?
Yes. You can target a power on any land, as long as it satisfies the targeting and range restrictions. ("Do as much as you can" only refers to resolving a Power, not how you use it in the first place.)
Obvious reasons you might want to do this include Gathering Presence (if you're Shroud of Silent Mist) or placing Disease (if Scream Disease Into the Wind has been played on you). There are other less-likely cases too.
Tags: Targeting, Scream Disease Into the Wind, Mists Shift and Flow (Shroud of Silent Mist), Shroud of Silent Mist, 1 more...

If all you can do with an innate power is change its Speed or Range (eg: either of Thunderspeaker's innates with 4 Air only), is that enough to target and use the Power?
No, a power needs to have the potential to do something (not just modify its own attributes) in order to be targeted or used.
This is usually irrelevant, but can occasionally be important (for, e.g., Scream Disease Into the Wind, or other "after using a power on a land..." effects.)
It does not need to actually do something, as long as it has an instruction that could in theory modify the game state. Setting up a triggered action for the current Power only (eg: Lure's first innate) doesn't count, either; it's effectively an internal modifier as well, despite using a trigger for timing.
Tags: Targeting, Resolving Powers, Range Boosts, Range, 4 more...